Kate: we came back from a 3 week camping holiday in 2004 and the same thing had happened to us, plus there was 3 inches of water in the cellars. I hope your insurance company are as good as ours were - they paid out for damaged household items and water damage to kitchen units etc without question and also organised the renewal of the ceiling, plastering, electrics, decorating, replacement of radiators without a hiccup. In fact the kitchen was more presentable (and saleable a couple of years later) than before.